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Posted to issues@hive.apache.org by "Vaibhav Gumashta (JIRA)" <ji...@apache.org> on 2019/01/30 01:15:00 UTC

[jira] [Updated] (HIVE-21164) ACID: explore how we can avoid a move step during inserts/compaction

     [ https://issues.apache.org/jira/browse/HIVE-21164?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vaibhav Gumashta updated HIVE-21164:
------------------------------------
    Summary: ACID: explore how we can avoid a move step during inserts/compaction  (was: ACID: explore how we can avoid a move step during compaction)

> ACID: explore how we can avoid a move step during inserts/compaction
> --------------------------------------------------------------------
>
>                 Key: HIVE-21164
>                 URL: https://issues.apache.org/jira/browse/HIVE-21164
>             Project: Hive
>          Issue Type: Bug
>          Components: Transactions
>    Affects Versions: 3.1.1
>            Reporter: Vaibhav Gumashta
>            Assignee: Vaibhav Gumashta
>            Priority: Major
>
> Currently, we write compacted data to a temporary location and then move the files to a final location, which is an expensive operation on some cloud file systems. Since HIVE-20823 is already in, it can control the visibility of compacted data for the readers. Therefore, we can perhaps avoid writing data to a temporary location and directly write compacted data to the intended final path.



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